树形引发电击穿的机理:LDPE薄膜中空间电荷场的测量

[1991] Proceedings of the 3rd International Conference on Properties and Applications of Dielectric Materials Pub Date : 1991-07-08 DOI:10.1109/ICPADM.1991.172019

M. Fukuzawa, M. Iwamoto

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引用次数: 5

摘要

作者研究了在针平面电极系统下，LDPE(低密度聚乙烯)样品中由于电树而产生的树形起始电压和路径长度。然后，他们测量了LDPE样品中产生的热刺激电流(TSC)和热刺激表面电位(TSSP)，这是由直流或交流电压的应用产生的偏置。通过研究实验确定的树起始电压与热激电测量确定的空间电荷场之间的关系，探讨了树起始电击穿的机理。结果表明，在LDPE薄膜中形成的空间电荷质心与针状电极尖端之间的距离与电树产生的路径长度大致相同。

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On the mechanism of electrical breakdown initiated by the treeing: measurement of the space charge field formed in an LDPE film

The authors investigated both the tree-initiation voltage and the length of the path generated in an LDPE (low-density polyethylene) specimen due to the electrical treeing under a needle-plane electrode system. They then measured both thermally stimulated current (TSC) and thermally stimulated surface potential (TSSP) generated in an LDPE specimen, which is biased by the application of either DC or AC voltage. The authors also investigated the mechanism of electrical breakdown initiated by the treeing by studying the relationship between the tree-initiation voltage determined by the experiment and the space charge field determined by the thermally stimulated electrical measurements. It was concluded that the distance between the centroid of the space charge formed in an LDPE film and the tip of the needle electrode was approximately the same as the length of the path generated by the electrical treeing.<>

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[1991] Proceedings of the 3rd International Conference on Properties and Applications of Dielectric Materials

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